Konark Complaint - KYC Approval with DSC

I have been trying to approve KYC using DSC with your login portal [ https://unifiedportal-emp.epfindia.gov.in/epfo/ ], but failed .After numerous attempts with every single browser like Mozilla ,Internet Explorer ,etc.& several java versions but the result is same .Can`t you people provide a proper procedure to follow for the same . Epfo website has been updated Thu Apr 20, 2017, so how do you people ask to use Mozilla version 50/51 to do the KYC approval .There is not 1 single FAQ about your website update, how you people could be so careless about your services. You have provided single toll free number , but after numerous attempts it says number busy or congestion in network.How could you people relay on single toll free number despite the number of users are in huge number . I can`t simply understand .